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backlight: Allow properties to be passed at registration

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Values such as max_brightness should be set before backlights are
registered, but the current API doesn't allow that. Add a parameter to
backlight_device_register and update drivers to ensure that they
set this correctly.

Signed-off-by: Matthew Garrett <mjg@redhat.com>
Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>
This commit is contained in:
Matthew Garrett
2010-02-17 16:39:44 -05:00
committed by Richard Purdie
parent 57e148b6a9
commit a19a6ee6ca
49 changed files with 271 additions and 151 deletions
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9
drivers/platform/x86/msi-wmi.c
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@@ -249,12 +249,15 @@ static int __init msi_wmi_init(void)
goto err_uninstall_notifier;
if (!acpi_video_backlight_support()) {
backlight = backlight_device_register(DRV_NAME,
NULL, NULL, &msi_backlight_ops);
struct backlight_properties props;
memset(&props, 0, sizeof(struct backlight_properties));
props.max_brightness = ARRAY_SIZE(backlight_map) - 1;
backlight = backlight_device_register(DRV_NAME, NULL, NULL,
&msi_backlight_ops,
&props);
if (IS_ERR(backlight))
goto err_free_input;
backlight->props.max_brightness = ARRAY_SIZE(backlight_map) - 1;
err = bl_get(NULL);
if (err < 0)
goto err_free_backlight;